DSQ type electric air locker is applicable to the discharge port or dry ash conveying pipeline of ash remover, air preheater, coal economizer and other equipments in thermal power plant for air locking and even feeding, and can also be used in the pneumatic conveying system of chemical plant, cement plant, grain and other departments. Its main structure consists of shell, rotor assembly, transmission mechanism, cycloid reducer, motor and so on. The main components of the product - shell are processed using rare earth wear-resistant steel, which fundamentally solves the defect of the product as a whole is not wear-resistant, greatly improves the service life, and improves the service life by 3 to 5 times than the original similar products. The company has also developed bearing type, cone type, inclined plate type, ball type air locker for users to choose.